2021
Benefits of Ion Mobility Separation and Parallel Accumulation-Serial Fragmentation Technology on timsTOF Pro for the Needs of Fast Photochemical Oxidation of Protein Analysis
LOGINOV, D.S., J. FIALA, J. CHMELIK, P. BRECHLIN, G. KRUPPA et. al.Základní údaje
Originální název
Benefits of Ion Mobility Separation and Parallel Accumulation-Serial Fragmentation Technology on timsTOF Pro for the Needs of Fast Photochemical Oxidation of Protein Analysis
Autoři
LOGINOV, D.S., J. FIALA, J. CHMELIK, P. BRECHLIN, G. KRUPPA a P. NOVAK
Vydání
ACS OMEGA, 2021, 2470-1343
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10400 1.4 Chemical sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.132
Kód RIV
RIV/00216224:14740/21:00124532
Organizační jednotka
Středoevropský technologický institut
UT WoS
000643537100037
Klíčová slova anglicky
Peptide Mapping; Hydrogen Deuterium Exchange-Mass Spectrometry; Glycine Ethyl Ester
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 18. 5. 2022 15:02, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Fast photochemical oxidation of proteins (FPOP) is a recently developed technique for studying protein folding, conformations, interactions, etc. In this method, hydroxyl radicals, usually generated by KrF laser photolysis of H2O2, are used for irreversible labeling of solvent-exposed side chains of amino acids. Mapping of the oxidized residues to the protein's structure requires pinpointing of modifications using a bottom-up proteomic approach. In this work, a quadrupole time-of-flight (QTOF) mass spectrometer coupled with trapped ion mobility spectrometry (timsTOF Pro) was used for identification of oxidative modifications in a model protein. Multiple modifications on the same residues, including six modifications of histidine, were successfully resolved. Moreover, parallel accumulation-serial fragmentation (PASEF) technology allows successful sequencing of even minor populations of modified peptides. The data obtained indicate a clear improvement of the quality of the FPOP analysis from the viewpoint of the number of identified peptides bearing oxidative modifications and their precise localization. Data are available via ProteomeXchange with identifier
Návaznosti
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